body {
  font-family: "Hiragino Sans", "Meiryo", sans-serif;
  background: #f5f5f7;
  margin: 0;
  padding: 40px 16px;
}

.container {
  max-width: 640px;
  margin: 0 auto;
  background: white;
  padding: 32px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

h1 {
  font-size: 22px;
  margin-bottom: 4px;
}

h2 {
  font-size: 16px;
  margin-top: 28px;
}

.button {
  display: inline-block;
  margin-top: 16px;
  padding: 12px 20px;
  background: #2d6cdf;
  color: white;
  text-decoration: none;
  border-radius: 6px;
  font-size: 14px;
}

.summary-block {
  margin-top: 16px;
  padding: 12px;
  background: #eef4ff;
  border-radius: 8px;
  white-space: pre-wrap;
}

.event-list {
  list-style: none;
  padding: 0;
}

.event-list li {
  border-bottom: 1px solid #eee;
  padding: 8px 0;
  font-size: 14px;
}

.event-time {
  color: #888;
  margin-right: 8px;
  font-size: 12px;
}

button {
  margin-top: 16px;
  padding: 10px 16px;
  background: #2d6cdf;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
}

button:disabled {
  background: #9fb6e0;
  cursor: not-allowed;
}

.loading {
  margin-top: 8px;
  color: #2d6cdf;
  font-size: 13px;
}

.flash {
  list-style: none;
  padding: 0;
}

.flash-error {
  color: #c0392b;
}

.flash-success {
  color: #27ae60;
}